Rh(D) is the expression of the presence or absence of D antigen on the red blood cell membrane in the Rh blood typing system. The presence of D antigen on the erythrocyte membrane is positive and is expressed as Rh(D)+, while the absence of D antigen on the erythrocyte membrane is negative and is expressed as Rh(D)-, which is commonly known as panda blood.
Clinically, the Rh blood grouping system is often performed by detecting the presence or absence of D antigen on the red blood cell membranes. 99.9% of the people have Rh(D)+ type blood, and only 0.1% have Rh(D)- type blood.
Since people with Rh(D)-type blood are very rare, this group of people need to go to the local central blood station in time after clarifying their blood type, in order to obtain blood resources as soon as possible when they need transfusion treatment in the future, so as to save the patient’s life by providing timely treatment.